If your git history were a tree: cherry picking is ripping a leaf off and gluing it some arbitrary place on the tree, fast-forwarding is ripping the leaf off and moving it to the end of the branch it’s on, and rebasing is ripping a branch off and gluing it somewhere else.

EDIT: cherry picking is actually making a copy of the leaf and gluing it elsewhere. And fast forwarding isn’t really moving the leaf, it’s taking the leaf you call BRANCHNAME and now calling a leaf further up the branch BRANCHNAME.

You want to remove fast-forward and rebase from a graph based version control system? What would you do instead? Always merge?

I don't think it makes sense to eliminate these, but I'll toss in "Take Commit" as an alternative name that might be more obvious than "Cherry Pick". Still, once you know it, you know it. You'd still need to understand what Take Commit means to use it effectively, but it would make it easier for a dev to learn it the first time.